81247040

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:149

約数の個数: 224

約数和(自身を含む): 245790720

約数和(自身を除く): 164543680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 23, 28, 32, 35, 38, 40, 46, 56, 64, 70, 76, 80, 83, 92, 95, 112, 115, 133, 140, 152, 160, 161, 166, 184, 190, 224, 230, 266, 280, 304, 320, 322, 332, 368, 380, 415, 437, 448, 460, 532, 560, 581, 608, 644, 664, 665, 736, 760, 805, 830, 874, 920, 1064, 1120, 1162, 1216, 1288, 1328, 1330, 1472, 1520, 1577, 1610, 1660, 1748, 1840, 1909, 2128, 2185, 2240, 2324, 2576, 2656, 2660, 2905, 3040, 3059, 3154, 3220, 3320, 3496, 3680, 3818, 4256, 4370, 4648, 5152, 5312, 5320, 5810, 6080, 6118, 6308, 6440, 6640, 6992, 7360, 7636, 7885, 8512, 8740, 9296, 9545, 10304, 10640, 11039, 11620, 12236, 12616, 12880, 13280, 13363, 13984, 15272, 15295, 15770, 17480, 18592, 19090, 21280, 22078, 23240, 24472, 25232, 25760, 26560, 26726, 27968, 30544, 30590, 31540, 34960, 36271, 37184, 38180, 42560, 44156, 46480, 48944, 50464, 51520, 53452, 55195, 61088, 61180, 63080, 66815, 69920, 72542, 76360, 88312, 92960, 97888, 100928, 106904, 110390, 122176, 122360, 126160, 133630, 139840, 145084, 152720, 176624, 181355, 185920, 195776, 213808, 220780, 244720, 252320, 253897, 267260, 290168, 305440, 353248, 362710, 427616, 441560, 489440, 504640, 507794, 534520, 580336, 610880, 706496, 725420, 855232, 883120, 978880, 1015588, 1069040, 1160672, 1269485, 1450840, 1766240, 2031176, 2138080, 2321344, 2538970, 2901680, 3532480, 4062352, 4276160, 5077940, 5803360, 8124704, 10155880, 11606720, 16249408, 20311760, 40623520, 81247040]

約数ペア:

[(1, 81247040), (2, 40623520), (4, 20311760), (5, 16249408), (7, 11606720), (8, 10155880), (10, 8124704), (14, 5803360), (16, 5077940), (19, 4276160), (20, 4062352), (23, 3532480), (28, 2901680), (32, 2538970), (35, 2321344), (38, 2138080), (40, 2031176), (46, 1766240), (56, 1450840), (64, 1269485), (70, 1160672), (76, 1069040), (80, 1015588), (83, 978880), (92, 883120), (95, 855232), (112, 725420), (115, 706496), (133, 610880), (140, 580336), (152, 534520), (160, 507794), (161, 504640), (166, 489440), (184, 441560), (190, 427616), (224, 362710), (230, 353248), (266, 305440), (280, 290168), (304, 267260), (320, 253897), (322, 252320), (332, 244720), (368, 220780), (380, 213808), (415, 195776), (437, 185920), (448, 181355), (460, 176624), (532, 152720), (560, 145084), (581, 139840), (608, 133630), (644, 126160), (664, 122360), (665, 122176), (736, 110390), (760, 106904), (805, 100928), (830, 97888), (874, 92960), (920, 88312), (1064, 76360), (1120, 72542), (1162, 69920), (1216, 66815), (1288, 63080), (1328, 61180), (1330, 61088), (1472, 55195), (1520, 53452), (1577, 51520), (1610, 50464), (1660, 48944), (1748, 46480), (1840, 44156), (1909, 42560), (2128, 38180), (2185, 37184), (2240, 36271), (2324, 34960), (2576, 31540), (2656, 30590), (2660, 30544), (2905, 27968), (3040, 26726), (3059, 26560), (3154, 25760), (3220, 25232), (3320, 24472), (3496, 23240), (3680, 22078), (3818, 21280), (4256, 19090), (4370, 18592), (4648, 17480), (5152, 15770), (5312, 15295), (5320, 15272), (5810, 13984), (6080, 13363), (6118, 13280), (6308, 12880), (6440, 12616), (6640, 12236), (6992, 11620), (7360, 11039), (7636, 10640), (7885, 10304), (8512, 9545), (8740, 9296)]